食品科学 ›› 2024, Vol. 45 ›› Issue (12): 269-275.doi: 10.7506/spkx1002-6630-20231107-050

• 安全检测 • 上一篇    

香辛料SYBR GREEN I染料实时聚合酶链式反应检测方法的建立及应用

杨晴丽,王仁静,张茹,孟宪卓,姚帮本,陈赵然,张旭,方建军,陈伟   

  1. (1.合肥工业大学食品与生物工程学院,安徽 合肥 230601;2.安徽省产品质量监督检验研究院,安徽 合肥 230051;3.衢州市食品药品检验研究院,浙江 衢州 324000)
  • 发布日期:2024-07-10
  • 基金资助:
    国家自然科学基金面上项目(32172295);安徽省重点研究与开发计划资助项目(2022f04020003); 安徽省质量基础设施标准化专项资助项目(2022MKS04)

Establishment and Application of SYBR Green I-Based Real-Time Polymerase Chain Reaction for the Authentication of Spices

YANG Qingli, WANG Renjing, ZHANG Ru, MENG Xianzhuo, YAO Bangben, CHEN Zhaoran, ZHANG Xu, FANG Jianjun, CHEN Wei   

  1. (1. School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China; 2. Anhui Province Product Quality Supervision and Inspection Institute, Hefei 230051, China;3. Quzhou Institute for Food and Drug Control, Quzhou 324000, China)
  • Published:2024-07-10

摘要: 目的:本研究致力于建立香辛料真实性成分的分子鉴定方法,为香辛料的掺假提供有效的鉴定和检测方法,在不同的使用条件下分别实现定性或半定量分析,为建立相关标准提供一定的基础技术支撑。方法:研究采用SYBR GREEN I染料实时聚合酶链式反应(polymerase chain reaction,PCR)方法,通过设计特异性引物成功建立了特异性检测八角、茴香、胡椒和花椒的分析技术。结果:该方法能够特异性检测出八角、茴香、胡椒、花椒,Ct值在标准品体积分数0.001%~10%范围内线性关系良好。针对八角标准品,检测限为1%;针对茴香、花椒、胡椒标准品,最检测限均为0.001%。利用该方法对5 份实际样本进行检测,分别在样本1中未检测出八角、茴香、胡椒、花椒;样本2、3、5中检测出八角、茴香、胡椒;样本4中检测出八角、茴香、胡椒、花椒。结论:本实验建立的SYBR GREEN I染料实时PCR方法灵敏度高、重复性好,可应用于实际样品的检测。

关键词: 香辛料;SYBR?GREEN?I染料;实时聚合酶链式反应;检测

Abstract: Objective: To establish a molecular method for the authentication of spices that can be used under different conditions for qualitative or semi-quantitative analyses. Methods: The real-time polymerase chain reaction (PCR) assay was developed based on SYBR Green I. Specific primers were successfully designed for the detection of star anise, fennel, pepper and prickly ash. Results: This method was able to specifically detect star anise, fennel, pepper and prickly ash with good linearity being found between Ct values and standard volume fraction in the range of 0.001%–10%. The limit of detection (LOD) was 1% for star anise standard, and 0.001% for fennel, pepper and prickly ash standards. The developed method was used to detect five actual samples. Star anise, fennel, pepper and prickly ash were not detected in sample 1; Star anise, fennel and pepper were detected in samples 2, 3 and 5; Star anise, fennel, pepper and prickly ash were detected in sample 4. Conclusion: This method has high sensitivity and good repeatability, and can be applied to the detection of real samples.

Key words: spice; SYBR Green I; real-time polymerase chain reaction; detection

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